Collapsible crib construction



July 28, 1953 H. ABRAMS COLLAPSIBLE CRIB CONSTRUCTION Filed May 9, 1951 O O O O O 0 INVENTOR as HERMAN ABRnMs ATTORNEY Patented July 28, 1953 UNITED STATES PATENT- OFFICE COLLAPSIBLE CRIB CONSTRUCTION Herman Abrams, Philadelphia, Pa. Application May 9, 1951, Serial No. 225,325

(Cl. -95)" v 6 Claims.

This invention relates generally to infants cribs and more particularly to an improved knock-down construction of crib which is adapted to be readily assembled and detachably secured to the mattress of an adults bed whereby to provide upon the bed a safe enclosure for the occupant of the crib.

Among the principal objects of the present invention is to provide an extremely simple and inexpensive crib-forming unit which is formed of a minimum number of readily separable parts adapted to be quickly-detachably secured together in assembly with the mattress of a conventional bed to form a sturdy crib-type bed for an infant.

, A further and important object of the invention is to provide a collapsible crib the component parts of which are adapted to be assembled in crib-forming relation upon the mattress of a conventional bed, the several parts of the crib-forming assembly being of such relative design and construction that when assembled upon the mattress the latter constitutes a relatively immovable part of the crib. I

Still another object of the invention is to provide a knock-down construction of crib which is adapted to be set up to extend transversely across the full width of any portion of the mattress of a conventional bed, the crib construction being such that the mattress is the only part of the bed which is essential toward providing a strong and rigid four-sided crib-like enclosure.

A still further object of the invention is to provide a crib-forming unit the component parts of which are adapted to be stacked into compact storage thereof, said parts being further adapted for assembly upon a mattress into a crib-forming relation without requiring the use of any special setting-up tools or devices.

Other objects and advantages of the present invention will appear more fully hereinafter, it being understood that the invention consists in the combination, construction, location and relative arrangement of parts, all as will appear more fully hereinafter, as shown in the accompanying drawings and as finally pointed out in the appended claims.

In the accompanying drawings, which are illustrative of certain preferred embodiments of the invention, Figure 1 is a perspective view showing the crib-forming unit of the present invention set up upon the mattress of a conventional bed;

Figure 2 is a top plan view of the crib assembly shown in Figure l;

- Figure 3 is a sideelevational view thereof;

Figure'4 is a transverse sectional view of the crib-forming unit as taken along the line 4-4 of Figure 2;

Figure 5 is an enlarged sectional view of an upper corner of the crib-assembly, such as is embraced by the broken line circle of Figure 3;

Figure 6 is a perspective view showing the lower portion of a modified construction of the end wall member of the unit; 7

Figure 7 is asectional view of the part shown in Figure 6; and p I Figure 8 is a sectional view of a detail as taken along the line 8-8 of Figure 6.

Referring now more particularly to the drawings, it will be observed that the crib-forming unit of the present invention is adapted to be assembled upon the-mattress ill of a conventional bed ll, both the mattress and bed being shown in dotted line configuration; The term conventional bed" is intended to include those which take either standard size, three-quarter size or twin bed size mattresses, the crib unit of the present invention being made up in sizes adapting it to be secured in position to extend transversely across the full width of-any of these mattresses of standard sizes.

Inasmuch as the crib unit of the present invention is adapted for assembly upon the mattress itself, it is immaterial insofar as the present invention is concerned, as to whether or not the bed is provided with head or foot posts. As a matter of fact, the crib unit of the present invention may be readily assembled upon a mattress completely 1 disassociated from its bed, as when suchmattress form to facilitate convenient transportation and is placed directly upon the floor to form a component, part of the completely assembled crib. The crib unit of the present invention essentially consists of a pair of similar side wall members I2 -I2 and a pair of similar end wall members I3l3. Each of the side wall members is provided with longitudinally extending upper and lower rails l4 and I5, the opposite ends of each of such rails being each provided with a freely projecting threaded stud l6 for threadedly reof a depth sufiicient to completely embrace the" side edges of the mattress upbn which the crib.

is to be assembled. I

In the form of the end Wall shown in Figures 1 to 4, inclusive, each of such'members'is-pro vided along its lower edge with an inturned flange I9 which may be formed as an iiitegral part of its associated end wall or as a separate element suitably secured: thereto with the ijoint therebetweeh reinforced, 'asby a elea-t 28:. The flange l9 extends inwardly of its associated end panel to an extent suflicient to provideasun- "stantial bearing against the bettom surface of the mattress IE. Itwi ll be'appareht' that when the end wall members- 13 4 3 are-'as's'embledrelat'ively to the mattress with their inwardly extendin flan es la -Te uispnseu beneath the mattress, as shown in Figure 1 and with said side wall member's" seciired- 'therebetwe'en as shown, the mattress I is securely clarnpe'dbetween the inturned flanges m -1'9 of the end wall members and thelow'er rails 1-5-4 5 -oftheside wan member's. proper registration 0f the studs 16 of the side wall members with sele'clted apertures 18 of the end wall member's, the s i'de wall 'members' may be locked by means of the wing nuts I1 threaded upoh the studs 8,111 vertically adjusted position 'toenact the desired clamping of the crib to the" Iii'attress' I'U.

In order to preventa'ny possibilityof "the cribforming unit from shiftinglengthwise 0f the mattress when it is a'ss'embled thereonas just'described, itis desirable teprovide the ihtu-rne'd flanges I-9-I9 'of the endfpanels'with insetknobs 2| of rubber or the like, which f-rictioiially ngage the under "surface of the-mattress and so fir mly hold the crib i-n fixed assembly with respect to the mattress. 'Also, where a sheet "or" the like may be employed to "cover the rm'attress within the confined area et the crib, it is: desirable, order toprev'ent creeping oi the "sheet relatively to thecrib, to provide the bottom edges of the lower rails It: with a stripping 22 of "rubber or the like.

Figures 6 and 7 show a modified construction of an end rail member 13*- which may be employed in lieu of-that hereinbefore described. 'In this -modifie'd construction, the inwardly extending flange I9 is hingedly secured tethe bottom edge of its associated end wall rnember 'by a plurality of ring elements 23 each of which-extends through a pair of apertures 24 and 15,- respiteti vely formed iii-"the adioining euges ot themembers l3 and 19. Preferably, these apertures 2425 are each reinforced by a grommet 26, as are the apertures 18 through which extend the threaded studs 16 for receiving the wing nuts which secure the end panels to the side panels.

The modified construction of end panel, as shown in Figures 6 and '7, is desirable from the standpoint of reduced cost of manufacture and also because it renders somewhat more advantageous stacking of ther compon'ent'iparts of the crib-forming unit.

What is claimed as new and useful is:

1. A collapsible crib unit adapted to be assembled uponrarid secured directly to a bed mattress comprising a plurality of separable panels wearable-together in assembled relation to provide a crib enclosure having parallel side walls extending transversely across the width of the mattress and parallel end walls engaging the opposite longitudinally extending side edges of the mattress, said side wall panels being adapted to rest upon the upper surf-ace cf the mattress while said end wallpanelsproj'ect downwardly ts the plane of thebottoin surface 'of saidr mattress, said endwall ipanels -beingprovided 'at their lower ends with inwardly turned-flanges 'adaptedi to underlie the mattress and to directly-engage' the underside thereof for clamping themattress between: said flanges and: the-lower: edgesofsaid side wall panels.

2'. In acollapsiblemrib unit' astdeflnedi in clatm 1 wherein said intu'rned "flanges" are formedl as rigid'extehsions of the end i-wallipanelsl 32- In a collapsible 'crib unitas"definedlinii'claim 1 wherein said side wall panels are adapted tor detachable securementfito saict'end'walllpairels in vertically adjusted position with respect to the latter.

4. A collapsible crib 'unit ashamed: inlelaima 1 having means :for: vertically adjustingsaidi rside wall panels relatively to said end wait zpanelsnto vary the effective "distance; between the lower edges of the latter andsaidj zinturnettr-iianges'irer accommodation therebetween o i mattresses of varying 'thieliness'l 5. In a collapsiblecribiunitfas deiiheu claim 1 wherein. said unturned fian'gesrare respectively provided with means. for preventin-g creepihg ef the crib lengthwise of'themattress.

References Cited irr the file of this .patent- UBTITED STATES PATE:NlI-S Number Name Date 1,925,229 Xiques techie-em... sent. -12, .1933 1,964,382 Xiques s- June26, 1934 2,223,955 Greenbaum Dee-3 1940 2,504,628 =Lieff has.Apr. 1.1,,. 1'950 

